Liquid-fuel burner



C. H. ALLISON.

LIQUID FUEL BURNER.

APPLICATION FILED MAR. 10, 1921.

. Patented Oct. 25, 1921.

GU 0: neg 5,

UNETED STATES CLARENCE H. ALLISON, OF CHICAGO, ILLINOIS.

LIQUID-FUEL BURNER.

Application filed March 10, 1921.

To all whom it may concern Be it known that I, CLARENCE H. ALLI- SON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Liquid-Fuel Burners, of which the following is a specification.

This invention relates'to liquid fuel burners, and its object is to provide a very simple and efficient burner of this kind, together with novel and improved means for controlling the flow of air to the burner.

The object stated is attained by means of a combination and arrangement of parts to be hereinafter described and claimed, and in order that the same may be better understood, reference is had to the accompanying drawing forming a part of this specification.

In the drawing,

Figure 1 is an elevation of the burner;

Fig. 2 is a longitudinal section thereof; and

Fig. 3 is a central cross-seection.

Referring specifically to the drawing, 5 denotes an arched air tube which is divided longitudinally or made in two sections held together in assembled relation by cross bolts 6. The two sections overlap at their meeting edges, and in order that they may be made interchangeable, only one section carries the overlapping bead 7. The overlap is only at the curved portions of the sections.

The air tube 5 has its two downturned ends open, and seating on a base plate 8 having air inlet openings 9 which register with said tube ends, and on the top of the base plate are upstanding ribs 10 between which the tube seats and is held. The base plate 8 rests on the grate frame 11 of the stove, said frame being cemented at its edges to the stove wall, as shown at 12, to prevent the passage of air past the plate, except through the openings 9.

Intermediate its ends, each section of the tube 5 is formed with a vertical web 13 extending from the top and terminating short of the bottom of the section. When the two sections are assembled, the webs 13 Specification of Letters Patent.

Patented Oct. 25, 1921.

Serial No. 451,355.

they meet the side walls of the section. It will therefore be seen that when the sections are assembled there is left a downwardly flared space between the' opposite inner edges of the webs.

On opposite sides of the partition formed by the webs 13, the tube 5 carries valves, which latter are flat plates 1 1 slidably mounted in apertures in the side walls of the tube, the latter being here formed with in ner and outer bosses 15 serving as guides for the valves. Two of these valves are located. on each side of the partition and they enter the tube from opposite sides and extend transversely. The purpose of the valves is to control the volume of air flowing to the central portion of the tube 5 from the inlet ends which seat over the openings 9.

At the center, the base plate 8 is formed 7 with a bowl-like depression 16 having a centrally located, conical raised portion 17 fitted at its top or apex with a burner nozzle or tip 18 to which a fuel delivery pipe 19 is connected.

The tube 5 has a bottom opening 20 midway between its ends. and the nozzle 18 is located centrally beneath this opening.

t will be noted that the valves 14 are located between the air inlet ends of the tube 5 and the air outlet opening 20, and hence they control the amount and direction of air passing to the nozzle 18. With one valve advanced as a barrier, the rush of air through the reduced space will intensify the flame on the corresponding side, but upon striking one of the webs 13, the farther end of the flame may cross diagonally to the opposite side of the tube 5. The direction of the flame may thus be changed, and the flame may be reduced if desired, or intensified in certain directions, such as toward the oven, or the front or rear of the stove. The downward taper of the webs 13 is made so that they will not project into the center of the burner where the flame is most intense. The flame shoots into the tube 5 through the center bottom opening 20, and it also spreads and issues laterally from the space between the base plate 8 and the under side of the tube where the latter is spaced from the base plate.

I claim:

A liquid fuel burner comprising a base plate having air inlet openings and carrying a burner nozzle, an arched air tube having its ends open and seating over the air inlet openings of the base plate, the burner nozzle being located beneath the tube, and the latter having a bottom air outlet opening in line with the burner nozzle, air-controlling valves in the tube between its ends and the outlet opening, and a partition in the tube above the airoutlet opening, the valves bemg located on opposite sides of the parti- 10 tion.

In testimony whereof I aflix my signature.

CLARENCE H. ALLISON. 

